diff --git a/hooks/environment b/hooks/environment
index 8542e59..11bf89a 100644
--- a/hooks/environment
+++ b/hooks/environment
@@ -12,4 +12,4 @@ if grep -E 'BUILDKITE_PLUGIN_METAHOOK_.+(\.BAT|\.CMD)=' "${BUILDKITE_METAHOOK_HO
   exit 1
 fi
 
-"${BASH_SOURCE%/*}/run-hook.sh" "$(basename "${BASH_SOURCE[0]}")"
+"$(dirname "${BASH_SOURCE[0]}")/run-hook.sh" "$(basename "${BASH_SOURCE[0]}")"
diff --git a/hooks/post-artifact b/hooks/post-artifact
index 699c30f..edda26f 100755
--- a/hooks/post-artifact
+++ b/hooks/post-artifact
@@ -1,3 +1,3 @@
 #!/usr/bin/env bash
 set -euo pipefail
-"${BASH_SOURCE%/*}/run-hook.sh" "$(basename "${BASH_SOURCE[0]}")"
+"$(dirname "${BASH_SOURCE}")/run-hook.sh" "$(basename "${BASH_SOURCE[0]}")"
diff --git a/hooks/post-checkout b/hooks/post-checkout
index 699c30f..edda26f 100755
--- a/hooks/post-checkout
+++ b/hooks/post-checkout
@@ -1,3 +1,3 @@
 #!/usr/bin/env bash
 set -euo pipefail
-"${BASH_SOURCE%/*}/run-hook.sh" "$(basename "${BASH_SOURCE[0]}")"
+"$(dirname "${BASH_SOURCE}")/run-hook.sh" "$(basename "${BASH_SOURCE[0]}")"
diff --git a/hooks/post-command b/hooks/post-command
index 699c30f..edda26f 100755
--- a/hooks/post-command
+++ b/hooks/post-command
@@ -1,3 +1,3 @@
 #!/usr/bin/env bash
 set -euo pipefail
-"${BASH_SOURCE%/*}/run-hook.sh" "$(basename "${BASH_SOURCE[0]}")"
+"$(dirname "${BASH_SOURCE}")/run-hook.sh" "$(basename "${BASH_SOURCE[0]}")"
diff --git a/hooks/pre-artifact b/hooks/pre-artifact
index 699c30f..edda26f 100755
--- a/hooks/pre-artifact
+++ b/hooks/pre-artifact
@@ -1,3 +1,3 @@
 #!/usr/bin/env bash
 set -euo pipefail
-"${BASH_SOURCE%/*}/run-hook.sh" "$(basename "${BASH_SOURCE[0]}")"
+"$(dirname "${BASH_SOURCE}")/run-hook.sh" "$(basename "${BASH_SOURCE[0]}")"
diff --git a/hooks/pre-checkout b/hooks/pre-checkout
index 699c30f..edda26f 100755
--- a/hooks/pre-checkout
+++ b/hooks/pre-checkout
@@ -1,3 +1,3 @@
 #!/usr/bin/env bash
 set -euo pipefail
-"${BASH_SOURCE%/*}/run-hook.sh" "$(basename "${BASH_SOURCE[0]}")"
+"$(dirname "${BASH_SOURCE}")/run-hook.sh" "$(basename "${BASH_SOURCE[0]}")"
diff --git a/hooks/pre-command b/hooks/pre-command
index 699c30f..edda26f 100755
--- a/hooks/pre-command
+++ b/hooks/pre-command
@@ -1,3 +1,3 @@
 #!/usr/bin/env bash
 set -euo pipefail
-"${BASH_SOURCE%/*}/run-hook.sh" "$(basename "${BASH_SOURCE[0]}")"
+"$(dirname "${BASH_SOURCE}")/run-hook.sh" "$(basename "${BASH_SOURCE[0]}")"
diff --git a/hooks/pre-exit b/hooks/pre-exit
index 43d28cf..20f744a 100755
--- a/hooks/pre-exit
+++ b/hooks/pre-exit
@@ -6,4 +6,4 @@ cleanup() {
 }
 trap cleanup EXIT
 
-"${BASH_SOURCE%/*}/run-hook.sh" "$(basename "${BASH_SOURCE[0]}")"
+"$(dirname "${BASH_SOURCE}")/run-hook.sh" "$(basename "${BASH_SOURCE[0]}")"